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<h1 class="title">dropsitewindow.cpp 示例文件</h1>
<span class="subtitle">draganddrop/dropsite/dropsitewindow.cpp</span>
<!-- $$$draganddrop/dropsite/dropsitewindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
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  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
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  ** and conditions see https://www.qt.io/terms-conditions. For further
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  ** Alternatively, you may use this file under the terms of the BSD license
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  ** modification, are permitted provided that the following conditions are
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  <span class="preprocessor">#include &lt;QtWidgets&gt;</span>

  <span class="preprocessor">#include &quot;droparea.h&quot;</span>
  <span class="preprocessor">#include &quot;dropsitewindow.h&quot;</span>

  DropSiteWindow<span class="operator">::</span>DropSiteWindow()
  {
      abstractLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;This example accepts drags from other &quot;</span>
                                    <span class="string">&quot;applications and displays the MIME types &quot;</span>
                                    <span class="string">&quot;provided by the drag object.&quot;</span>));
      abstractLabel<span class="operator">-</span><span class="operator">&gt;</span>setWordWrap(<span class="keyword">true</span>);
      abstractLabel<span class="operator">-</span><span class="operator">&gt;</span>adjustSize();

      dropArea <span class="operator">=</span> <span class="keyword">new</span> DropArea;
      connect(dropArea<span class="operator">,</span> <span class="operator">&amp;</span>DropArea<span class="operator">::</span>changed<span class="operator">,</span>
              <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>DropSiteWindow<span class="operator">::</span>updateFormatsTable);

      <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> labels;
      labels <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Format&quot;</span>) <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Content&quot;</span>);

      formatsTable <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>;
      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setColumnCount(<span class="number">2</span>);
      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setEditTriggers(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoEditTriggers);
      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setHorizontalHeaderLabels(labels);
      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>horizontalHeader()<span class="operator">-</span><span class="operator">&gt;</span>setStretchLastSection(<span class="keyword">true</span>);

      clearButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Clear&quot;</span>));
      quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Quit&quot;</span>));

      buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span>;
      buttonBox<span class="operator">-</span><span class="operator">&gt;</span>addButton(clearButton<span class="operator">,</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>ActionRole);
      buttonBox<span class="operator">-</span><span class="operator">&gt;</span>addButton(quitButton<span class="operator">,</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>RejectRole);

      connect(quitButton<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>close);
      connect(clearButton<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> dropArea<span class="operator">,</span> <span class="operator">&amp;</span>DropArea<span class="operator">::</span>clear);

      <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(<span class="keyword">this</span>);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(abstractLabel);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(dropArea);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(formatsTable);
      mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(buttonBox);

      setWindowTitle(tr(<span class="string">&quot;Drop Site&quot;</span>));
      setMinimumSize(<span class="number">350</span><span class="operator">,</span> <span class="number">500</span>);
  }

  <span class="type">void</span> DropSiteWindow<span class="operator">::</span>updateFormatsTable(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmimedata.html">QMimeData</a></span> <span class="operator">*</span>mimeData)
  {
      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setRowCount(<span class="number">0</span>);
      <span class="keyword">if</span> (<span class="operator">!</span>mimeData)
          <span class="keyword">return</span>;

      <span class="keyword">for</span> (<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>format : mimeData<span class="operator">-</span><span class="operator">&gt;</span>formats()) {
          <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>formatItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(format);
          formatItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEnabled);
          formatItem<span class="operator">-</span><span class="operator">&gt;</span>setTextAlignment(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignTop <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignLeft);

          <span class="type"><a href="../qtcore/qstring.html">QString</a></span> text;
          <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">&quot;text/plain&quot;</span>)) {
              text <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">&gt;</span>text()<span class="operator">.</span>simplified();
          } <span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">&quot;text/html&quot;</span>)) {
              text <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">&gt;</span>html()<span class="operator">.</span>simplified();
          } <span class="keyword">else</span> <span class="keyword">if</span> (format <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">&quot;text/uri-list&quot;</span>)) {
              <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator">&lt;</span><span class="type"><a href="../qtcore/qurl.html">QUrl</a></span><span class="operator">&gt;</span> urlList <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">&gt;</span>urls();
              <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> urlList<span class="operator">.</span>size() <span class="operator">&amp;</span><span class="operator">&amp;</span> i <span class="operator">&lt;</span> <span class="number">32</span>; <span class="operator">+</span><span class="operator">+</span>i)
                  text<span class="operator">.</span>append(urlList<span class="operator">.</span>at(i)<span class="operator">.</span>toString() <span class="operator">+</span> QLatin1Char(<span class="char">' '</span>));
          } <span class="keyword">else</span> {
              <span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span> data <span class="operator">=</span> mimeData<span class="operator">-</span><span class="operator">&gt;</span>data(format);
              <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> data<span class="operator">.</span>size() <span class="operator">&amp;</span><span class="operator">&amp;</span> i <span class="operator">&lt;</span> <span class="number">32</span>; <span class="operator">+</span><span class="operator">+</span>i)
                  text<span class="operator">.</span>append(<span class="type"><a href="../qtcore/qstring.html#QStringLiteral">QStringLiteral</a></span>(<span class="string">&quot;%1 &quot;</span>)<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qtglobal.html#uchar-typedef">uchar</a></span>(data<span class="operator">[</span>i<span class="operator">]</span>)<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">16</span><span class="operator">,</span> QLatin1Char(<span class="char">'0'</span>))<span class="operator">.</span>toUpper());
          }

          <span class="type">int</span> row <span class="operator">=</span> formatsTable<span class="operator">-</span><span class="operator">&gt;</span>rowCount();
          formatsTable<span class="operator">-</span><span class="operator">&gt;</span>insertRow(row);
          formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setItem(row<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(format));
          formatsTable<span class="operator">-</span><span class="operator">&gt;</span>setItem(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(text));
      }

      formatsTable<span class="operator">-</span><span class="operator">&gt;</span>resizeColumnToContents(<span class="number">0</span>);
  }

</pre>
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<!-- @@@draganddrop/dropsite/dropsitewindow.cpp -->
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